Promax DT-802, Руководство пользователя

Страница: 5 / 42

En
g
lis
h
CONTROL MODULE. DT-802
04-2015 Page 1
CONTROL MODULE
DT-802
DIGITAL TV HEADEND
1. GENERAL
1.1 Description
The DTTV system ( Digital to TV ) is based on a TV headend that receives television
signals from different sources. It processes them for its integration into an output signal in
Digital Terrestrial ( DVB-T ) format. In this way, the signal can be distributed on a TV
network with multiple receivers, keeping the original wiring installation but distributing in
high-quality format. This system is applicable to hotels, hospitals, shopping centres,
universities, etc. that is, local distribution networks that want to distribute media content in
digital quality.
The DT-802 is the control and power module, therefore is the most important
module of the DTTV system. The control module is connected to all the modules of the
headend via modem-cable.
The DT-802 allows controlling and configurating each module individually. The user
can manage and check the status of any module in two different ways: in local mode or in
remote mode. In local mode, the module is managed via the keypad and the LCD screen
placed on the frontal of the
DT-802 . In remote mode, the control module is connected to a
computer through a network cable and it is managed by using the specific software
control.
The difference between the control module DT-800 and the control module
DT-802 is that the DT-802 has a redundant power system based on two totally
independent batteries that can be hot-swapped without affecting the network distribution
system. The redundant battery works when the other battery fails due to a malfunction
or a failure of the supplier. It warns the user using a buzzer and a light.